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tree.c (free_lang_data_in_type): Do not free the type variant chains.

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2009-09-09  Richard Guenther  <rguenther@suse.de>

	* tree.c (free_lang_data_in_type): Do not free the type variant
	chains.
	(free_lang_data): Merge char_type_node with its properly signed
	variant.
	(pass_ipa_free): Collect after freeing language specific data.

From-SVN: r151558
This commit is contained in:
Richard Guenther 2009-09-09 09:30:26 +00:00 • committed by Richard Biener
parent e79faf7e44
commit ccffb7554e
2 changed files with 15 additions and 11 deletions
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8
gcc/ChangeLog
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@ -1,3 +1,11 @@
2009-09-09 Richard Guenther <rguenther@suse.de>
* tree.c (free_lang_data_in_type): Do not free the type variant
chains.
(free_lang_data): Merge char_type_node with its properly signed
variant.
(pass_ipa_free): Collect after freeing language specific data.
2009-09-09 Michael Matz <matz@suse.de>
PR middle-end/41268

18
gcc/tree.c
View file

@ -4238,16 +4238,6 @@ free_lang_data_in_type (tree type)
TYPE_CONTEXT (type) = NULL_TREE;
TYPE_STUB_DECL (type) = NULL_TREE;
/* Remove type variants other than the main variant. This is both
wasteful and it may introduce infinite loops when the types are
read from disk and merged (since the variant will be the same
type as the main variant, traversing type variants will get into
an infinite loop). */
if (TYPE_MAIN_VARIANT (type))
TYPE_NEXT_VARIANT (TYPE_MAIN_VARIANT (type)) = NULL_TREE;
TYPE_NEXT_VARIANT (type) = NULL_TREE;
}
@ -4856,6 +4846,12 @@ free_lang_data (void)
boolean_true_node = TYPE_MAX_VALUE (boolean_type_node);
}
/* Unify char_type_node with its properly signed variant. */
if (TYPE_UNSIGNED (char_type_node))
unsigned_char_type_node = char_type_node;
else
signed_char_type_node = char_type_node;
/* Reset some langhooks. */
lang_hooks.callgraph.analyze_expr = NULL;
lang_hooks.types_compatible_p = NULL;
@ -4898,7 +4894,7 @@ struct simple_ipa_opt_pass pass_ipa_free_lang_data =
0, /* properties_provided */
0, /* properties_destroyed */
0, /* todo_flags_start */
0 /* todo_flags_finish */
TODO_ggc_collect /* todo_flags_finish */
}
};